16515920

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{479}}^1$

素因数の和:923

約数の個数: 40

約数和(自身を含む): 38568960

約数和(自身を除く): 22053040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 479, 862, 958, 1724, 1916, 2155, 2395, 3448, 3832, 4310, 4790, 6896, 7664, 8620, 9580, 17240, 19160, 34480, 38320, 206449, 412898, 825796, 1032245, 1651592, 2064490, 3303184, 4128980, 8257960, 16515920]

約数ペア:

[(1, 16515920), (2, 8257960), (4, 4128980), (5, 3303184), (8, 2064490), (10, 1651592), (16, 1032245), (20, 825796), (40, 412898), (80, 206449), (431, 38320), (479, 34480), (862, 19160), (958, 17240), (1724, 9580), (1916, 8620), (2155, 7664), (2395, 6896), (3448, 4790), (3832, 4310)]